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In modern game UI development, the IMMEDIATE-MODE GUI pattern (e.g. Dear ImGui by Omar Cornut) differs from retained mode in which way?
ALayout uses pure XML files with no code at all
BWidget tree persists between frames with handlers
CAll UI is drawn once at startup and reused thereafter
DUI redrawn each frame from code, no widget objects
Answer & Solution
Correct answer: D. UI redrawn each frame from code, no widget objects
Omar Cornut Dear ImGui + Casey Muratori 'Immediate Mode GUIs' talk: every frame, code emits widgets + reads their state. Cheap for tools + debug overlays.
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